#include <iostream>
#include <cstdio>
using namespace std;

int main()
{
    freopen("detect.in","r",stdin);
    freopen("detect.out","w",stdout);
    int t;
    cin >> t;
    while(t--)
    {
        int n,m;
        cout << 0 << m;
    }
    return 0;
}
